The Zero JSP-FP is one of the cheapest jacketed bullets out there and their minimum lot is 1K.
Be aware that the 44 version is .431" in diameter and meant for the older 44's with larger chamber throats.
Anything made before the late 1990's probably qualifies.
Roze Distribution: 44 Mag 240 Gr JSP (1,000)
They are roughly $.14 a bullet once you pay for shipping.
They are a very nice bullet but I would not shoot them thru .429-.430" chambers